simple fix for an initially obscure bug
simple fix for an initially obscure bug


Former-commit-id: 01d423206362e9dd1971b2373ecde88b1d4ab770 [formerly 01d423206362e9dd1971b2373ecde88b1d4ab770 [formerly 138f93fca09b53497d11c4e5947048a49721c636]]
Former-commit-id: 8c2b9d50a160628922eb7d1d0aee08f4ae5b6590
Former-commit-id: 510f8c7cfddfff9bb67198c31de98dfd3a380f35
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine